Harlie sits next to 4 phonetic neighbors — Harley, Charlie, and Marley are the closest matches by sound. Most share Harlie's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"hare's meadow, hare clearing"
"green, blooming"
"red king"
"son of the horse lord"
"gentle, mild-mannered"
"worthy of love"
"servant of St. Fillan"
"gift"
"bright fame"
"slope, hillside"
"princess, noblewoman"
"he who follows at the heel; supplanter"
"Honor"
"called forth, gloriously summoned"
"resolute protector, will-helmet"
"sun, moon"
"flat piece, thin layer"
Similar sound: These names share phonetic patterns with Harlie — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English hara + leah origins, giving them the same cultural heritage as Harlie.
Rhythm: Harlie is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.